Answer / nitin khatana

because the line in traction system are very long distances so there is voltage drop across line to boost up this voltage we connect an autotransformer which is placed at some distances from other for compensate this voltage drop we used transformer.

Answer / shripad

Booster transformers are used in electric railway AC catenary feeders to collect the return current from the rails and the earth to the return conductor. ... Booster transformers are used to eliminate the stray currents and the disturbances, obliging the return current to flow to the return conductor.

what is tandem isolator ??????????

5 Answers  

---

What is the minimum insulation value required for a cable between phase to phase and phase to earth of 380 Vac 50Hz circuit, having load arround 800 amps.

2 Answers   DEWA, TATA,

---

plzzzzzzzzz plzz send me the papers of JSPL WRITTEN TEST..SO that i can prepare for the test in electrical engg..

0 Answers  

---

R=*¶ l/a

0 Answers  

---

What is the max value of neutral current that can be allowed in system?

0 Answers  

---

How to put breaker in service / test position.

1 Answers   KSEB, L&T, Siemens,

---

what effect will 10 milliampere current cause to human body

1 Answers   NPCIL,

---

what is power factor?

7 Answers   CA,

---

Dear sir, we are getting voltage fluctuations suddenly for 2 or 3 minutes again it becomes normal. we checked each and every connection some times we are getting 110 volts like that from earth to neutral again it is reducing we are getting supply from 45 kva DG set give earthing properly.

3 Answers   Triveni,

---

what is dc voltage?

2 Answers  

---

How to calculate the no of Ceiling fan (1200mm sweep) per unit area?

0 Answers  

---

3 phase induction motor rotor field rotate at synchronous speed w.r.t ?

3 Answers  

---